AD9239BCPZ-250

Overview

The AD9239BCPZ-250 is a quad, 12-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 250 MSPS. It features a high-speed serial output interface with error correction coding and operates from a single 1.8 V supply. The device includes an on-chip temperature sensor and supports differential or single-ended analog inputs with a full power bandwidth of 780 MHz. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 64.1 dB at 250 MSPS and a Spurious-Free Dynamic Range (SFDR) of 77 dBc. Differential Nonlinearity (DNL) is typically ±0.3 LSB, while Integral Nonlinearity (INL) is ±0.7 LSB. Total power dissipation reaches 1.526 W.

Feature Summary

• Four independent 12-bit ADC channels integrated into a single package for space-efficient designs.
• Coded serial digital outputs per channel incorporating scrambling and error correction codes.
• On-chip phase-locked loop (PLL) to distribute and multiply the sampling clock.
• Integrated duty cycle stabilizer to maintain performance across varying clock input ratios.

Applications

• Communication receivers
• Cable head end equipment and M-CMTS
• Broadband radios
• Wireless infrastructure transceivers
• Radar and military-aerospace subsystems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet revision to ensure compatibility with required sampling rates and package types. Confirm that the component meets RoHS compliance standards and lead-free requirements before integration into production assemblies.

Selection Notes

Select this model when four synchronized high-speed conversion channels are required within a compact footprint. Ensure the system design accommodates the 1.8 V supply voltage and provides adequate thermal management for the LFCSP-72 package. Verify that the host interface supports the serialized data protocol and error correction decoding logic.

Part Context

This component belongs to the AD9239 family of high-performance analog-to-digital converters. It shares architectural similarities with other members in the series but is distinguished by its 250 MSPS sampling capability. The device utilizes advanced CMOS technology to achieve low power consumption while maintaining high linearity and dynamic range specifications.

Replacement Considerations

The AD9239BCPZ-210 and AD9239BCPZ-170 are confirmed substitutes within the same product family. These variants offer lower maximum sampling rates of 210 MSPS and 170 MSPS respectively, while maintaining identical pinouts and functional characteristics.